a•4x-a-2 |
4x+1 |
2 |
1+x |
k |
1 |
2 |
2 |
3 |
1+x |
1-x |
a•2x-a-2 |
2x+1 |
2x-1 |
2x+1 |
2x-1 |
2x+1 |
1+y |
1-y |
1+x |
1-x |
2 |
1+x |
k |
1 |
2 |
2 |
3 |
1+x |
1-x |
log2
| ||
log2
|
1+x |
1-x |
1+x |
k |
1 |
2 |
2 |
3 |
|
1 |
2 |
2 |
3 |
1 |
2 |
2 |
3 |
4 |
9 |
5 |
9 |
| ||
3 |
1 |
3 |
1 |
4 |
A.{x|-3<x<0或x>3} | B.{x|x<-3或0<x<3} |
C.{x|x<-3或x>3} | D.{x|-3<x<0或0<x<3} |
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